Applications
More accurate phase measurements can be made by using the
horizontal magnifier function to increase the sweep speed without
changing the SEC/DIV variable control setting. To do this, set the
HORIZONTAL MODE switch to MAG and set the MAG switch to
either X5, X I0, orX50.
If the sweep speed were increased 10 times (MAG set to X
10
), the
magnified horizontal graticule calibration then would be 4.5° per
division (45°/division divided by
10
). Figure 3-9 shows the same
signals illustrated in Figure 3-8, but horizontally magnified by a
factor of
10
.
EXAMPLE. In Figure 3-9 the 10X magnified display results in a
horizontal difference of six divisions between the two signals.
Substituting the given values into the phase difference formula:
Phase Difference =
6
div x 4.5°/div = 27°.
3-14
2225 Operators
Содержание 2225
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Страница 13: ...SECTION 1 PREPARATION FORUSE 2225 Operators ...
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Страница 21: ...SECTION 2 OPERATION 2225 Operators ...
Страница 23: ...NOTE Numbers on the instrument are keyed to Table 2 1 ...
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Страница 54: ...SECTION 4 CHECKSAND ADJUSTMENTS 4 2225 Operators ...
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Страница 58: ...Checks and Adjustments Figure 4 2 Locating the low frequency compensation adjustment 2225 Operators 4 3 ...
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Страница 70: ...SECTION 6 OPTIONSAND ACCESSORIES 6 2225 Operators ...
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Страница 79: ...NOTES ...